Pith Number

pith:EWZI2XSQ

pith:2018:EWZI2XSQWRWPQJDM7FUFHZ6CC7

not attested not anchored not stored refs pending

Semi-Supervised Learning with Declaratively Specified Entropy Constraints

Haitian Sun, Lidong Bing, William W. Cohen

arxiv:1804.09238 v2 · 2018-04-24 · cs.LG · cs.AI · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EWZI2XSQWRWPQJDM7FUFHZ6CC7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:15:41.609903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25b28d5e50b46cf8246cf96853e7c217c0831728d3a429d9b890bd6a5494ad69

Aliases

arxiv: 1804.09238 · arxiv_version: 1804.09238v2 · doi: 10.48550/arxiv.1804.09238 · pith_short_12: EWZI2XSQWRWP · pith_short_16: EWZI2XSQWRWPQJDM · pith_short_8: EWZI2XSQ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EWZI2XSQWRWPQJDM7FUFHZ6CC7 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 25b28d5e50b46cf8246cf96853e7c217c0831728d3a429d9b890bd6a5494ad69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11e518394c7ee7fb92812473e5c4f17d3b953bce502591f691c801dff2eb3a11",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-04-24T20:19:09Z",
    "title_canon_sha256": "4a7ad3f5db6521d0ed689d0598bcc008deec6bf0db937751997d6c68250674dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09238",
    "kind": "arxiv",
    "version": 2
  }
}